Coolant Expansion Tank with Cap Compatible with X166 W166 1665000049

Coolant Expansion Tank with Cap for X166 and W166 models.Designed as a direct replacement for OE part number 1665000049 (also listed as 166 500 0049 and EPT0126).Constructed from aluminum and installed in the engine compartment.Compatible with vehicles using OE part number 1665000049, including but not limited to: GL350 X166 (2013–2016), GL450 X166 (2013–2016), GL550 X166 (2013–2016), GL63 X166 (2013–2016), GLE300d W166 (2016–2017), GLE350 W166 (2016–2018), GLE350d W166 (2016), GLE400 W166 (2016–2019), GLE43 W166 (2017–2019), GLE450 W166 (2016), GLE550 W166 (2016–2018), GLE550e W166 (2016–2018), GLE63 W166 (2016–2019), GLE63 S W166 (2016–2019), GLS350d X166 (2017), GLS450 X166 (2017–2019), GLS550 X166 (2017–2019), GLS63 X166 (2017–2019), ML250 W166 (2015), ML350 W166 (2012–2015), ML400 W166 (2015), ML550 W166 (2012–2015), and ML63 W166 (2012–2015).Package includes one coolant expansion tank with cap.Fitment is confirmed by matching OE part number; verify the part number on your existing component before installation.Professional installation is recommended. Disclaimer: This part is produced by a third-party manufacturer.Brand/model mentions are for compatibility illustration only.

• Model Compatibility: Fits X166 and W166 vehicle models as specified in the title.
• Part Composition: Includes coolant expansion tank, cap, and associated components listed.
• Part Number Reference: Matches part number 1665000049 as stated in the title.
• Functional Purpose: Restores coolant expansion system function when installed.
• Replacement Use: Designed as a direct replacement for the specified coolant expansion tank assembly.